Zhangamine hydrochloride, chemical name: 1 - (4-hydroxyphenyl) - 2-aminoethanol hydrochloride, alias: octopusamine, n-synephrine, norp-hydroxyephrine. The molecular formula is C8H11NO2.HCl, and the molecular weight is 189.64. Its chemicalbook use is similar to that of synephrine hydrochloride. It is derived from the dried young fruit of the Rutaceae plant Citrus aurantium L α- Receptor stimulants have the effect of constricting blood vessels and raising blood pressure.